Radiation Spectroscopy

detects radioactive isotopes

Radiation Spectroscopy
This invention facilitates high speed digital processing of conventional radiation detectors. The new method breaks from traditional full-charge collection methods by directly digitizing detector output signals and using high-speed digital components for advanced analysis of received data. The resultant data are highly accurate with minimal system drift, are provided in real time, and are immune to pulse pile up. Sufficient pulse resolution is maintained to calculate pulse energy levels and identify isotopes. Operating ranges of 0 to 100,000 counts per second without dead time have been verified. The data retention and operator interface requirements can be tailored for specific applications.

Market Assessment
Determining isotopic composition in real time would be useful in various homeland defense applications. This quick and efficient method screens materials and personnel. Market applications include port-of-entry vehicle/container inspections, passenger/luggage screening, and weapons of mass destruction treaty verifications. Other uses include radiation dose measurements during medical treatments including boron neutron capture therapy and gamma knife procedures.

Patent Status
U.S. Patent Nos. 5,304,808 and 5,354,991 have been issued on this technology.

Stage of Development
High-speed, low-noise spectroscopy boards have been fabricated and tested. Implementation of the technology in specific configurations to support a variety of end uses is ongoing.

Contact
Eric Frickey, Licensing Associate
(803) 725-0406
eric.frickey@srnl.doe.gov

For More Information
See tech brief.